Cord control device for Roman shade

Abstract

A cord control device for a window covering includes a frame mounted in a housing for the window covering. The cord control device further includes a roller having a first roller half and a second roller half that is rotatably supported by the frame and that is releasably engaged with the first roller half. At least one of the first roller half and the second roller half includes a cord hole, allowing an end of a cord to extend through a cord hole of the frame and the cord hole of the roller. The end of the cord is tied up to an outer side of the roller, and another end of the cord is attached to a shade body of the window covering, such that the roller and the cord turn jointly in a retracting direction or a releasing direction for retracting or releasing the shade body.

1 . A cord control device for a window covering, the cord control device comprising: 
 a frame adapted to be mounted in a housing for the window covering, the frame including a cord hole; and    a roller including a first roller half and a second roller half, the second roller half being rotatably supported by the frame, the first roller half being releasably engaged with the second roller half;    at least one of the first roller half and the second roller half including a cord hole, allowing an end of a cord to extend through the cord hole of the frame and the cord hole of said at least one of the first roller half and the second roller half, with the end of the cord being tied up to an outer side of the roller, and with another end of the cord being attached to a shade body of the window covering, such that the roller and the cord turn jointly in a retracting direction or a releasing direction for retracting or releasing the shade body.    
     
     
         2 . The cord control device for a window covering as claimed in  claim 1 , wherein at least one of the first roller half and the second roller half includes at least one rib on an inner side thereof.  
     
     
         3 . The cord control device for a window covering as claimed in  claim 1 , wherein one of the first roller half and the second roller half includes at least one mortise, and wherein the other of the first roller half and the second roller half includes at least one tenon for releasably engaging with said at least one mortise.